HYDRAULIC CONTROL VALVE

The invention relates to a hydraulic control valve. A new means of achieving a valve float position in a closed centered hydraulic control valve. The valve has a main spool position whereby pressure compensator load sense control pressure is drained to tank through the main spool. Secondly, a pin ac...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: BIALOSKY EVAN D, KARSTEN FRANK C, LACEY DANIEL S, SAILER JR RICHARD F, GRAHAM SCOTT C, WEBEL ROGER A
Format: Patent
Sprache:chi ; eng
Schlagworte:
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Beschreibung
Zusammenfassung:The invention relates to a hydraulic control valve. A new means of achieving a valve float position in a closed centered hydraulic control valve. The valve has a main spool position whereby pressure compensator load sense control pressure is drained to tank through the main spool. Secondly, a pin acts on the pressure compensator to prevent the main pump flow from reaching the main section spool. Finally, the new spool position adds a connection from the consumer to tank, enabling a float position. 本发明涉及液压控制阀。一种在闭式中心液压控制阀中实现阀浮动位置的新方法。阀具有主阀芯位置,由此压力补偿器负载感测控制压力通过主阀芯连通到箱。其次,销作用在压力补偿器上,以阻止主泵流到达主区段阀芯。最后,新的阀芯位置附加从消耗装置到箱的连接,从而实现浮动位置。